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01그림판.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>그림판</title>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-eOJMYsd53ii+scO/bJGFsiCZc+5NDVN2yr8+0RDqr0Ql0h+rP48ckxlpbzKgwra6" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-JEW9xMcG8R+pH31jmWH6WWP0WintQrMb4s7ZOdauHnUtxwoG2vI5DkLtS3qm9Ekf" crossorigin="anonymous"></script>
<script>
var outCanvas, outCtx, inFile;
var outPaper;
var inImageArray, outImageArray;
var inWidth, inHeight, outWidth, outHeight;
function init() {
outCanvas = document.getElementById('outCanvas');
outCtx = outCanvas.getContext('2d');
}
function clear2() {
const outCanvas = document.getElementById('outCanvas');
const ctx = outCanvas.getContext('2d');
ctx.clearRect(0, 0, outCanvas.width, outCanvas.height);
}
function openImage() {
inFile = document.getElementById('seletFile').files[0];
inWidth = inHeight = Math.sqrt(inFile.size);
inImageArray = new Array(inHeight);
for (var i = 0; i < inHeight; i++)
inImageArray[i] = new Array(inHeight);
var reader = new FileReader();
reader.readAsBinaryString(inFile);
reader.onload = function() {
var bin = reader.result;
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
var sPixel = (i * inHeight + k);
var ePixel = (i * inHeight + k) + 1;
inImageArray[i][k] = bin.slice(sPixel, ePixel);
}
}
equalImage();
}
}
function displayImage() {
outCanvas.width = outWidth;
outCanvas.height = outHeight;
outPaper = outCtx.createImageData(outHeight, outWidth);
for (var i = 0; i < outHeight; i++) {
for (var k = 0; k < outWidth; k++) {
var charValue = outImageArray[i][k].charCodeAt(0);
outPaper.data[(i * outWidth + k) * 4 + 0] = charValue;
outPaper.data[(i * outWidth + k) * 4 + 1] = charValue;
outPaper.data[(i * outWidth + k) * 4 + 2] = charValue;
outPaper.data[(i * outWidth + k) * 4 + 3] = 255;
}
}
outCtx.putImageData(outPaper, 0, 0);
}
function equalImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
outImageArray[i][k] = inImageArray[i][k];
}
}
displayImage();
}
function addImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var value = parseInt(document.getElementById("brightI").value);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
pixel = inImageArray[i][k].charCodeAt(0);
if (pixel + value > 255) {
pixel = 255;
} else if (pixel + value < 0) {
pixel = 0;
} else {
pixel += value;
}
outImageArray[i][k] = String.fromCharCode(pixel);
}
}
displayImage();
}
function bwImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var value = parseInt(document.getElementById("blackwhite").value);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
pixel = inImageArray[i][k].charCodeAt(0);
if (pixel > value)
pixel = 255;
else
pixel = 0;
outImageArray[i][k] = String.fromCharCode(pixel);
}
}
displayImage();
}
function bwImageAvg() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var hap = 0;
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++)
hap += inImageArray[i][k].charCodeAt(0);
var value = hap / (inHeight * inWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
pixel = inImageArray[i][k].charCodeAt(0);
if (pixel > value)
pixel = 255;
else
pixel = 0;
outImageArray[i][k] = String.fromCharCode(pixel);
}
}
displayImage();
}
function poaterizingImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
pixel = inImageArray[i][k].charCodeAt(0);
if (pixel >= 231) {
pixel = 255;
} else if (pixel >= 206) {
pixel = 230;
} else if (pixel >= 181) {
pixel = 205;
} else if (pixel >= 156) {
pixel = 180;
} else if (pixel >= 131) {
pixel = 155;
} else if (pixel >= 106) {
pixel = 130;
} else if (pixel >= 81) {
pixel = 105;
} else if (pixel >= 56) {
pixel = 80;
} else if (pixel >= 31) {
pixel = 55;
} else pixel = 0;
outImageArray[i][k] = String.fromCharCode(pixel);
}
}
displayImage();
}
function zoomOutImage() {
var scale = parseInt(prompt("축소 배율(짝수)", "2"));
outHeight = parseInt(inHeight / scale);
outWidth = parseInt(inHeight / scale);
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; K < inWidth; k++) {
outImageArray[parseInt(i / scale)][parseInt(k / scale)] = inImageArray[i][k];
}
}
displayImage();
}
function zoomInImage() {
var scale = parseInt(prompt("확대 배율(짝수)", "2"));
outHeight = inHeight * scale;
outWidth = inWidth * scale;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++)
outImageArray[i][k] = String.fromCharCode(0);
for (var i = 0; i < outHeight; i++) {
for (var k = 0; k < outWidth; k++) {
outImageArray[i][k] = inImageArray[parseInt(i / scale)][parseInt(k / scale)];
}
}
displayImage();
}
function lrImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
outImageArray[i][k] = inImageArray[i][inWidth - 1 - k];
}
}
displayImage();
}
function udImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
outImageArray[i][k] = inImageArray[inHeight - 1 - i][k];
}
}
displayImage();
}
function rotaImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
for (var i = 0; i < outHeight; i++) {
for (var k = 0; k < inWidth; k++) {
outImageArray[i][k] = inImageArray[inWidth - 1 - i][k];
}
}
for (var i = 0; i < outWidth; i++) {
for (var k = i; k < outHeight; k++) {
tmp = outImageArray[i][k];
outImageArray[i][k] = outImageArray[k][i];
outImageArray[k][i] = tmp;
}
}
displayImage();
}
function rotalImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++)
outImageArray[i][k] = String / fromCharCode(0);
var degree = parseFloat(prompt("회전각도", 45));
var radian = degree * Math.PI / 180.0;
var xd, yd, xs, ys;
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
xs = i;
ys = k;
xd = parseInt(Math.cos(radian) * xs - Math.sin(radian) * ys);
yd = parseInt(Math.sin(radian) * xs + Math.cos(radian) * ys);
if ((0 <= xd && xd < outHeight) && (0 <= yd && yd < outWidth))
outImageArray[xd][yd] = inImageArray[xs][ys];
}
}
displayImage();
}
function rota2Image() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++)
outImageArray[i][k] = String.fromCharCode(0);
var degree = parseFloat(prompt("회전각도", 45));
var radian = degree * Math.PI / 180.0;
radian = -radian;
var xd, xy, xs, ys;
var cx = parseInt(inHeight / 2);
var cy = parseInt(inWidth / 2);
for (var i = 0; i < outHeight; i++) {
for (var k = 0; k < outWidth; k++) {
xs = i;
ys = k;
xd = parseInt(Math.cos(radian) * (xs - cx) - Math.sin(radian) * (ys - cy) + cy);
yd = parseInt(Math.sin(radian) * (xs - cx) + Math.cos(radian) * (ys - cy) + cy);
if ((0 <= xd && xd < outHeight) && (0 <= yd && yd < outWidth))
outImageArray[xs][ys] = inImageArray[xd][yd];
else
outImageArray[xs][ys] = String.fromCharCode(255);
}
}
displayImage();
}
function histoStretch() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var low = inImageArray[0][0].charCodeAt(0);
var high = inImageArray[0][0].charCodeAt(0);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
pixel = inImageArray[i][k].charCodeAt(0);
if (pixel < low)
low = pixel;
if (pixel > high)
high = pixel
}
}
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
inVal = inImageArray[i][k].charCodeAt(0);
outVal = (inVal - low) / (high - low) * 255;
outImageArray[i][k] = String.fromCharCode(outVal);
}
}
displayImage();
}
function endInSearch() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var low = inImageArray[0][0].charCodeAt(0);
var high = inImageArray[0][0].charCodeAt(0);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
pixel = inImageArray[i][k].charCodeAt(0);
if (pixel < low)
low = pixel;
if (pixel > high)
high = pixel
}
}
low += 50;
high -= 50;
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
inVal = inImageArray[i][k].charCodeAt(0);
outVal = (inVal - low) / (high - low) * 255;
if (outVal > 255)
outVal = 255;
else if (outVal < 0)
outVal = 0;
outImageArray[i][k] = String.fromCharCode(outVal);
}
}
displayImage();
}
function histoEqual() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
histo = new Array(256);
for (var i = 0; i < 256; i++)
histo[i] = 0;
for (var i = 0; i < 256; i++)
for (var k = 0; k < inWidth; k++) {
value = inImageArray[i][k].charCodeAt(0);
histo[value]++;
}
sumHisto = new Array(256);
for (var i = 0; i < 256; i++)
sumHisto[i] = 0;
sumVal = 0;
for (var i = 0; i < 256; i++) {
sumVal = 0;
sumHisto[i] = sumVal;
}
normalHisto = new Array(256);
for (var i = 0; i < 256; i++)
noyrmalHisto[i] = 0.0;
for (var i = 0; i < 256; i++)
normalHisto[i] = sumHisto[i] * (1 / (inWidth * inHeight)) * 255;
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
inVal = inImageArray[i][k].charCodeAt(0);
outVal = normalHisto[inVal];
if (outVal > 255)
outVal = 255;
else if (outVal < 0)
outVal = 0;
else
outVal = parseInt(outVal);
outImageArray[i][k] = String.fromCharCode(outVal);
}
}
displayImage();
}
function graphImage() {
var histo = new Array(256);
for (var i = 0; i < 256; i++)
histo[i] = 0;
for (var i = 0; i < outHeight; i++) {
for (var k = 0; k < outWidth; k++) {
value = inImageArray[i][k].charCodeAt(0);
histo[value]++;
}
}
var max = 0;
var min = outHeight * outWidth;
for (var i = 0; i < 256; i++) {
if (histo[i] < min)
min = histo[i];
if (histo[i] > max)
max = histo[i];
}
var dif = max - min
var normalHisto = new Array(256);
for (var i = 0; i < 256; i++) {
normalHisto[i] = (histo[i] - min) * 255 / dif;
}
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
for (var i = 0; i < outHeight; i++) {
for (var k = 0; k < outWidth; k++) {
outImageArray[i][k] = 255;
}
}
for (var i = 0; i < outHeight; i++) {
for (var k = 0; k < normalHisto[i]; k++) {
outImageArray[outHeight - 1 - k][i] = 0;
}
}
for (var i = 0; i < outHeight; i++) {
for (var k = 0; k < outWidth; k++) {
outImageArray[i][k] = String.fromCharCode(outImageArray[i][k]);
}
}
displayImage();
}
function embossImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var mask = [
[-1., 0., 0.],
[0., 0., 0.],
[0., 0., 1.]
]
tempInputArray = new Array(inHeight + 2);
for (var i = 0; i < inHeight + 2; i++)
tempInputArray[i] = new Array(inWidth + 2);
for (var i = 0; i < inHeight + 2; i++)
for (var k = 0; K < inWidth + 2; k++)
tempInputArray[i][k] = String.fromCharCode(127);
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
var S = 0.0;
for (var m = 0; m < 3; m++) {
for (var n = 0; n < 3; n++) {
S += mask[m][n] * tempInputArray[i + m][k + n].charCodeAt(0);
}
}
tempOutputArray[i][k] = S;
}
}
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++)
tempOutputArray[i][k] += 127.0;
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++) {
var v = tempOutputArray[i][k];
if (v > 255.0)
v = 255.0;
if (v < 0)
v = 0.0;
outImageArray[i][k] = String.fromCharCode(v);
}
displayImage();
}
function blurrImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var mask = [
[1 / 9., 1 / 9., 1 / 9.],
[1 / 9., 1 / 9., 1 / 9.],
[1 / 9., 1 / 9., 1 / 9.]
]
tempInputArray = new Array(inHeight + 2);
for (var i = 0; i < inHeight + 2; i++)
tempInputArray[i] = new Array(inWidth + 2);
for (var i = 0; i < inHeight + 2; i++)
for (var k = 0; k < inWidth + 2; k++)
tempInputArray[i][k] = String.fromCharCode(127);
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
var S = 0.0;
for (var m = 0; m < 3; m++) {
for (var n = 0; n < 3; n++) {
S += mask[m][n] * tempInputArray[i + m][k + n].charCodeAt(0);
}
}
tempOutputArray[i][k] = S;
}
}
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++) {
var v = tempOutputArray[i][k];
if (v > 255.0)
v = 255.0;
if (v < 0)
v = 0.0;
outImageArray[i][k] = String.fromCharCode(v);
}
displayImage();
}
function edgeImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var mask = [
[0., 0., 0.],
[-1., 1., 0.],
[0., 0., 0.]
]
tempInputArray = new Array(inHeight + 2);
for (var i = 0; i < inHeight + 2; i++)
tempInputArray[i] = new Array(inWidth + 2);
for (var i = 0; i < inHeight + 2; i++)
for (var k = 0; K < inWidth + 2; k++)
tempInputArray[i][k] = String.fromCharCode(127);
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
var S = 0.0;
for (var m = 0; m < 3; m++) {
for (var n = 0; n < 3; n++) {
S += mask[m][n] * tempInputArray[i + m][k + n].charCodeAt(0);
}
}
tempOutputArray[i][k] = S;
}
}
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++) {
var v = tempOutputArray[i][k];
if (v > 255.0)
v = 255.0;
if (v < 0)
v = 0.0;
outImageArray[i][k] = String.fromCharCode(v);
}
displayImage();
}
function laplacianImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var mask = [
[1., 1., 1.],
[1., -8., 1.],
[1., 1., 1.]
]
tempInputArray = new Array(inHeight + 2);
for (var i = 0; i < inHeight + 2; i++)
tempInputArray[i] = new Array(inWidth + 2);
for (var i = 0; i < inHeight + 2; i++)
for (var k = 0; k < inWidth + 2; k++)
tempInputArray[i][k] = String.fromCharCode(127);
for (var i = 0; i < inHeight; i++)
for (var k = 0; K < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
var S = 0.0;
for (var m = 0; m < 3; m++) {
for (var n = 0; n < 3; n++) {
S += mask[m][n] * tempInputArray[i + m][k + n].charCodeAt(0);
}
}
tempOutputArray[i][k] = S;
}
}
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++) {
var v = tempOutputArray[i][k];
if (v > 255.0)
V = 255.0;
if (v < 0)
v = 0.0;
outImageArray[i][k] = String.fromCharCode(v);
}
displayImage();
}
function sharpeningImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var mask = [
[0., -1., 0.],
[-1., 5., -1.],
[0., -1., 0.]
]
tempInputArray = new Array(inHeight + 2);
for (var i = 0; i < inHeight + 2; i++)
tempInputArray[i] = new Array(inWidth + 2);
for (var i = 0; i < inHeight + 2; i++)
for (var k = 0; k < inWidth + 2; k++)
tempInputArray[i][k] = String.fromCharCode(127);
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
var S = 0.0;
for (var m = 0; m < 3; m++) {
for (var n = 0; n < 3; n++) {
S += mask[m][n] * tempInputArray[i + m][k + n].charCodeAt(0);
}
}
tempOutputArray[i][k] = S;
}
}
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++) {
var v = tempOutputArray[i][k];
if (v > 255.0)
v = 255.0;
if (v < 0)
v = 0.0;
outImageArray[i][k] = String.fromCharCode(v);
}
displayImage();
}
function gaussianImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var mask = [
[1 / 16., 1 / 8., 1 / 16.],
[1 / 8., 1 / 4., 1 / 8.],
[1 / 16., 1 / 8., 1 / 6.]
]
tempInputArray = new Array(inHeight + 2);
for (var i = 0; i < inHeight + 2; i++)
tempInputArray[i] = new Array(inWidth + 2);
for (var i = 0; i < inHeight + 2; i++)
for (var k = 0; k < inWidth + 2; k++)
tempInputArray[i][k] = String.fromCharCode(127);
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; K++) {
var S = 0.0;
for (var m = 0; m < 3; m++) {
for (var n = 0; n < 3; n++) {
S += mask[m][n] * tempInputArray[i + m][k + n].charCodeAt(0);
}
}
tempOutputArray[i][k] = S;
}
}
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++) {
var v = tempOutputArray[i][k];
if (v > 255.0)
v = 255.0;
if (v < 0)
v = 0.0;
outImageArray[i][k] = String.fromCharCode(v);
}
displayImage();
}
function hpfSharpImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var mask = [
[-1 / 9., -1 / 9., -1 / 9.],
[-1 / 9., 8 / 9., -1 / 9.],
[-1 / 9., -1 / 9., -1 / 9.]
]
tempInputArray = new Array(inHeight + 2);
for (var i = 0; i < inHeight + 2; i++)
tempInputArray[i] = new Array(inWidth + 2);
for (var i = 0; i < inHeight + 2; i++)
for (var k = 0; k < inWidth + 2; k++)
tempInputArray[i][k] = String.fromCharCode(127);
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
var S = 0.0;
for (var m = 0; m < 3; m++) {
for (var n = 0; n < 3; n++) {
S += mask[m][n] * tempInputArray[i + m][k + n].charCodeAt(0);
}
}
tempOutputArray[i][k] = S;
}
}
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++) {
var v = tempOutputArray[i][k];
if (v > 255.0)
v = 255.0;
if (v < 0)
v = 0.0;
outImageArray[i][k] = String.fromCharCode(v);
}
displayImage();
}
function loGImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var mask = [
[0., 0., -1., 0., 0.],
[0., -1., -2., -1., 0.],
[-1., -2., 16., -2. - 1.],
[0., -1., -2., -1., 0.],
[0., 0., -1., 0., 0.]
]
tempInputArray = new Array(inHeight + 4);
for (var i = 0; i < inHeight + 4; i++)
tempInputArray[i] = new Array(inWidth + 4);
for (var i = 0; i < inHeight + 4; i++)
for (var k = 0; k < inWidth + 4; k++)
tempInputArray[i][k] = String.fromCharCode(127);
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
var S = 0.0;
for (var m = 0; m < 5; m++) {
for (var n = 0; n < 5; n++) {
S += mask[m][n] * tempOutputArray[i + m][k + n].charCodeAt(0);
}
}
tempOutputArray[i][k] = S;
}
}
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++) {
var v = tempOutputArray[i][k];
if (v > 255.0)
v = 255.0;
if (v < 0)
v = 0.0;
outImageArray[i][k] = String.fromCharCode(v);
}
displayImage();
}
function doGImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
var mask = [
[0., 0., 0., -1., -1., -1., 0., 0., 0.],
[0., -2., -3., -3., -3., -3., -3., -2., 0.],
[0., -3., -2., -1., -1., -1., -2., -3., 0.],
[-1., -3., -1., 9., 9., 9., -1., -3., -1.],
[-1., -3., -1., 9., 19., 9., -1., -3., -1.],
[-1., -3., -1., 9., 9., 9., -1., -3., -1.],
[0., -3., -2., -1., -1., -1., -2., -3., 0.],
[0., -2., -3., -3., -3., -3., -3., -2., 0.],
[0., 0., 0., -1., -1., -1., 0., 0., 0.]
]
tempInputArray = new Array(inHeight + 8);
for (var i = 0; i, inHeight + 8; i++)
tempInputArray[i] = new Array(inWidth + 8);
for (var i = 0; i < inHeight + 8; i++)
for (var k = 0; k < inWidth + 8; k++)
tempInputArray[i][k] = String.fromCharCode(127);
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
var S = 0.0;
for (var m = 0; m < 9; m++) {
for (var n = 0; n < 9; n++) {
S += mask[m][n] * tempInputArray[i + m][k + n].charCodeAt(0);
}
}
tempOutputArray[i][k] = S;
}
}
for (var i = 0; i < outHeight; i++)
for (var k = 0; jk < outWidth; k++) {
var v = tempOutputArray[i][k];
if (v > 255.0)
v = 255.0;
if (v < 0)
v = 0.0;
outImageArray[i][k] = String.fromCharCode(v);
}
displayImage();
}
function onHomogenImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
tempInputArray = new Array(inHeight + 2);
for (var i = 0; i < inHeight + 2; i++)
tempInputArray[i] = new Array(inWidth + 2);
for (var i = 0; i < inHeight + 2; i++)
for (var k = 0; k < inWidth + 2; k++)
tempInputArray[i][k] = String.fromCharCode(!27);
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
var max;
for (var i = 0; i < inHeight; i++) {
for (var k = 0; k < inWidth; k++) {
max = 0.0;
for (var m = 0; m < 3; m++) {
for (var n = 0; n < 3; n++) {
if (Math.abs(tempInputArray[i + 1][k + 1].charCodeAt(0) - tempInputArray[i + m][k + n].charCodeAt(0)) >= max)
max = Math.abs(tempInputArray[i + 1][k + 1].charCodeAt(0) - tempInputArray[i + m][k + n].charCodeAt(0));
}
}
tempOutputArray[i][k] = max;
}
}
for (var i = 0; i < outHeight; i++)
for (var k = 0; k < outWidth; k++) {
var v = tempOutputArray[i][k];
if (v > 255.0)
v = 255.0;
if (v < 0)
v = 0.0;
outImageArray[i][k] = String.fromCharCode(v);
}
displayImage();
}
function chaImage() {
outHeight = inHeight;
outWidth = inWidth;
outImageArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
outImageArray[i] = new Array(outWidth);
tempInputArray = new Array(inHeight + 2);
for (var i = 0; i < inHeight + 2; i++)
tempInputArray[i] = new Array(inWidth + 2);
for (var i = 0; i < inHeight + 2; i++)
for (var k = 0; k < inWidth + 2; k++)
tempInputArray[i][k] = String.fromCharCode(127);
for (var i = 0; i < inHeight; i++)
for (var k = 0; k < inWidth; k++) {
tempInputArray[i + 1][k + 1] = inImageArray[i][k];
}
tempOutputArray = new Array(outHeight);
for (var i = 0; i < outHeight; i++)
tempOutputArray[i] = new Array(outWidth);
var max;